Oxbridge Assessment PrepWeek 2 – Electricity

Physics/Engineering at Oxford: PAT

Engineering at Cambridge: ENGAA

Natural Sciences at Cambridge: NSAA

Assessment date: 4th November 2020

Week 1 – Mechanics

Week 2 – Electricity

Week 3 – Area/volume of shapes

Week 4 – Waves

Week 5 – Differentiation/Integration/Series

Week 6 – General physics

Week 7 – General maths (logs, binomial, trig).

Electricity Facts (unlike A-level, you need to remember these)

Current: I=Q∆t

Potential difference: V=WQ

Resistance: R=VI

Resistivity: ρ=RAL

Resistors in series: RT=R1+R2+R3…

Resistors in parallel: 1RT = 1R1

+ 1R2

+ 1R3…

Power: P=IV=I 2R=V2

R

Energy: E=VQ=ItV

Cells in series: V T=V 1+V 2+V 3…

Cells in parallel: V T=V 1=V 2=V 3

Kirchoff’s first law: I 1=I2+ I 3+ I 4

Kirchoff’s second law: V o=V 1+V 2+V 3

EMF: 𝜀 = 𝑉 + v = IR + Ir = 𝐼(𝑅 + 𝑟)

Potential dividers: V out=V ¿R1R1+R2

Q24 Section 1 NSAA 2020 Specimen (no calculator)

Q28 Section 1 NSAA 2020 Specimen (no calculator)

Q36 Section 1 NSAA 2020 Specimen (no calculator)

Q23 Section 1 NSAA 2018 (no calculator)

Q2 Section 1 ENGAA 2019 (no calculator)

Q8 Section 1 ENGAA 2019 (no calculator)

Q20 Section 1 NSAA 2018 (no calculator)

Q13 PAT 2018

Q9 PAT 2017

Q2 Section 2 ENGAA 2019 (no calculator)

Q19 PAT 2017 specimen

Q4 Section 2 ENGAA 2019 (no calculator)

Q15 Section 2 ENGAA 2019 (no calculator)

Q16 Section 2 ENGAA 2018 (no calculator)

Q19 PAT 2018

Q35 NSAA 2018

P2 NSAA 2018 SECTION 2